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Commit 850202e1 authored by Jan Kiszka's avatar Jan Kiszka Committed by Linus Torvalds
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scripts/gdb: add module iteration class



Will soon be used for loading symbols, printing global variables or
listing modules.

Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b0fecd8c
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#
# gdb helper commands and functions for Linux kernel debugging
#
#  module tools
#
# Copyright (c) Siemens AG, 2013
#
# Authors:
#  Jan Kiszka <jan.kiszka@siemens.com>
#
# This work is licensed under the terms of the GNU GPL version 2.
#

import gdb

from linux import utils


module_type = utils.CachedType("struct module")


class ModuleList:
    def __init__(self):
        global module_type
        self.module_ptr_type = module_type.get_type().pointer()
        modules = gdb.parse_and_eval("modules")
        self.curr_entry = modules['next']
        self.end_of_list = modules.address

    def __iter__(self):
        return self

    def next(self):
        entry = self.curr_entry
        if entry != self.end_of_list:
            self.curr_entry = entry['next']
            return utils.container_of(entry, self.module_ptr_type, "list")
        else:
            raise StopIteration